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Special roadbed construction key technology research

Author: ChenWei
Tutor: WangXuanCang
School: Chang'an University
Course: Road and Railway Engineering
Keywords: Aeolian sand Grained Soil Impact compaction technology Compaction mechanism Compaction standard Rayleigh wave
CLC: U416.1
Type: Master's thesis
Year: 2004
Downloads: 352
Quote: 2
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Abstract


With the deepening of China 's western development and construction and the development of highway construction , Aeolian Sand Subgrade soil foundation giant grains have become a common form of the roadbed of Western high-grade highways . In this paper, on the basis of surveys and gather information at home and abroad , and to combine内蒙古巴拉贡- Sunday - Mahuanggou Expressway on the regional characteristics , a systematic study of the compaction characteristics and impact compaction technology in its roadbed construction application . At the same time , the paper focuses on the application of the Rayleigh wave hair compaction detect in a special roadbed quality detection . By laboratory experiments and theoretical analysis to study the physical properties of materials , mechanical and chemical properties ; research material compaction characteristics and compaction mechanism , and a pilot study based on the analysis of the various compaction influencing factors role law ; shaking table , the study the vibratory compaction characteristics of the material and the compaction mechanism , analysis of the the vibratory compaction characteristics of the material and the role of law of vibration parameters ; access to large amounts of reference data on the basis of a number of field compaction tests , conducted a systematic study of impact compaction technology ; discussed on this basis , the method of determination of the maximum dry density , degree of compaction standard detection methods and the degree of compaction compaction standard . Site quality inspection process , the use of the Rayleigh wave technology with the compaction test density determination , by a large number of laboratory and field detection , achieved a satisfactory degree of compaction testing effect , card Mingruileibo law can be an efficient lossless detection method.

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CLC: > Transportation > Road transport > Road works > Roadbed, pavement engineering > Subgrade
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